Surface configuration of a rear spoiler for a vehicle



FIG. 1 is a left, front perspective view of a surface configuration of a rear spoiler for a vehicle according to my novel design, the right, front perspective view being mirror symmetrical;

FIG. 2 is a rear view thereof; and,

FIG. 3 is a right, rear perspective view thereof, the left, rear perspective view being mirror symmetrical. 

The ornamental design for a surface configuration of a rear spoiler for a vehicle, as shown and described. 